[challenger22]

More like:

The guy that designed the flight control surfaces of the F-22 did so using an elaborate Excel spreadsheet powered by 4,000 lines of uncommented VBA filled with aerodynamics equations, and he retired 3 years ago.

[PaulHoule]

I've seen non-professional programmers write the most amazing things in VBA.

[watsocd]

Excel is a great proof-of-concept tool where non-programmers can prove their point.

Unfortunately proof-of-concept tools often end up being the end result because .... it works good enough.

[NikolaeVarius]

This happens.

[jki275]

That is so much more likely than you know...